Quinoa - Rainbow grown in 2022. Quinoa is a high-protein grain you can easily grow at home. It is cooked just like rice, and as well as tasting good, it is rich in lysine, giving a good nutritional balance to your meal.The grain is naturally protected from insects, rodents and birds by a yellow coating that tastes bitter. This is easily removed – by soaking the seed overnight and rinsing a few times in cold water before cooking.It's no more hassle than soaking dried beans before you use them, and means that you lose less of the crop to the beasties in your garden.